ABSTRACT:PGAS, the Partitioned Global Address Space, programming model provides ease-of-use through a global shared address space while emphasizing performance through locality awareness. Over the past several years, the PGAS model has been gaining rising attention. A number of PGAS languages such as UPC, CAF and Titanium are widely available on high-performance computers. The DARPA HPCS program has also resulted in new promising PGAS languages, such as X10 and Chapel. This BoF will bring together developers from the various aforementioned PGAS language groups and the research and development community for exchange of ideas and information. The BoF will be conducted in a panel format with one representative from each PGAS language development community as a panelist. The panelists will share the most recent developments in each one of those language paradigms (from specifications to tools and applications) and respond to questions of prospective as well as seasoned users.